Check for inputs not generated by deps

tools/gn/target.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef TOOLS_GN_TARGET_H_
 #define TOOLS_GN_TARGET_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 201 matching lines @@
   // dependencies are known). They will be null until then. Generally, this can
   // only be used during target writing.
   const Toolchain* toolchain() const { return toolchain_; }
 
   // Sets the toolchain. The toolchain must include a tool for this target
   // or the error will be set and the function will return false. Unusually,
   // this function's "err" output is optional since this is commonly used
   // frequently by unit tests which become needlessly verbose.
   bool SetToolchain(const Toolchain* toolchain, Err* err = nullptr);
 
+  // Once this target has been resolved, all outputs from the target will be
+  // listed here. This will include things listed in the "outputs" for an
+  // action or a copy step, and the output library or executable file(s) from
+  // binary targets.
+  //
+  // It will NOT include stamp files and object files.
+  const std::vector<OutputFile>& computed_outputs() const {
+    return computed_outputs_;
+  }
+
   // Returns outputs from this target. The link output file is the one that
   // other targets link to when they depend on this target. This will only be
   // valid for libraries and will be empty for all other target types.
   //
   // The dependency output file is the file that should be used to express
   // a dependency on this one. It could be the same as the link output file
   // (this will be the case for static libraries). For shared libraries it
   // could be the same or different than the link output file, depending on the
   // system. For actions this will be the stamp file.
   //
@@ skipping 19 matching lines @@
   void PullForwardedDependentConfigsFrom(const Target* from);
   void PullRecursiveHardDeps();
 
   // Fills the link and dependency output files when a target is resolved.
   void FillOutputFiles();
 
   // Validates the given thing when a target is resolved.
   bool CheckVisibility(Err* err) const;
   bool CheckTestonly(Err* err) const;
   bool CheckNoNestedStaticLibs(Err* err) const;
+  void CheckSourcesGenerated() const;
+  void CheckSourceGenerated(const SourceFile& source) const;
 
   OutputType output_type_;
   std::string output_name_;
   std::string output_extension_;
 
   FileList sources_;
   bool all_headers_public_;
   FileList public_headers_;
   bool check_includes_;
   bool complete_static_lib_;
@@ skipping 24 matching lines @@
   // All hard deps from this target and all dependencies. Filled in when this
   // target is marked resolved. This will not include the current target.
   std::set<const Target*> recursive_hard_deps_;
 
   ConfigValues config_values_;  // Used for all binary targets.
   ActionValues action_values_;  // Used for action[_foreach] targets.
 
   // Toolchain used by this target. Null until target is resolved.
   const Toolchain* toolchain_;
 
-  // Output files. Null until the target is resolved.
+  // Output files. Empty until the target is resolved.
+  std::vector<OutputFile> computed_outputs_;
   OutputFile link_output_file_;
   OutputFile dependency_output_file_;
 
   DISALLOW_COPY_AND_ASSIGN(Target);
 };
 
 #endif  // TOOLS_GN_TARGET_H_